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Contract OI history

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Jan 21, 2028 EXPIRATION

MS $155.00 Put

MS280121P00155000

Latest saved OI920Oct 23, 2026
Last change-1vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MS $155.00 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 9214600 2026-10-02: 524 OI2026-10-05: 534 OI2026-10-06: 534 OI2026-10-07: 904 OI2026-10-08: 904 OI2026-10-09: 905 OI2026-10-13: 908 OI2026-10-14: 908 OI2026-10-15: 908 OI2026-10-16: 913 OI2026-10-21: 921 OI2026-10-23: 920 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

MS contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing920-1
Oct 21, 2026921+8
Oct 16, 2026913+5
Oct 15, 20269080
Oct 14, 20269080
Oct 13, 2026908+3
Oct 09, 2026905+1
Oct 08, 20269040
Oct 07, 2026904+370
Oct 06, 20265340
Oct 05, 2026534+10
Oct 02, 2026524No prior observation